Base | Representation |
---|---|
bin | 1011110101011101010000… |
… | …0001111111011001101101 |
3 | 1201002000212021012011112220 |
4 | 2331113110001333121231 |
5 | 3201201122341344323 |
6 | 43402032403145553 |
7 | 2512105412264112 |
oct | 275272401773155 |
9 | 51060767164486 |
10 | 13013013231213 |
11 | 41678737a1a36 |
12 | 15620139752b9 |
13 | 735177a10628 |
14 | 32db94436909 |
15 | 178771d4e0e3 |
hex | bd5d407f66d |
13013013231213 has 16 divisors (see below), whose sum is σ = 17411097686976. Its totient is φ = 8645139534080.
The previous prime is 13013013231173. The next prime is 13013013231217. The reversal of 13013013231213 is 31213231031031.
It is a cyclic number.
It is not a de Polignac number, because 13013013231213 - 224 = 13012996453997 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13013013231217) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12482581 + ... + 13484837.
It is an arithmetic number, because the mean of its divisors is an integer number (1088193605436).
Almost surely, 213013013231213 is an apocalyptic number.
It is an amenable number.
13013013231213 is a deficient number, since it is larger than the sum of its proper divisors (4398084455763).
13013013231213 is a wasteful number, since it uses less digits than its factorization.
13013013231213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1017324.
The product of its (nonzero) digits is 972, while the sum is 24.
Adding to 13013013231213 its reverse (31213231031031), we get a palindrome (44226244262244).
The spelling of 13013013231213 in words is "thirteen trillion, thirteen billion, thirteen million, two hundred thirty-one thousand, two hundred thirteen".
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